The greenhouse gas CO2 is generally only considered as a problem. Up to now there are only few approaches for using this widely available, cheap, low-toxic and non-flammable gas

Inside the biofilters, 15,000 earthworms per square meter of filters are "at work" devouring the impurities from the water. The remainder is 60 grams of pure humus per cubic meter of water, which can be sold at a good price.

Point-of-care diagnostics includes a series of innovations which render informations about the state of health and eventual infections within a short time and close to the patient.

As we face a scarcity of fossile resources and the menace of climatic changes, nuclear energy is considered indispensable in many countries of the world.

What happens to billions of drink packages, plastic bottles cookie wraps and similar consumer goods in the world? Despite all campaigns to reduce, reuse and recycle, the amount of municipal solid waste continues to rise.

Have you ever wondered whether the "organic" eggs you have purchased at a high price are really "organic"? Even if the chicken can walk about freely and in adequate conditions, normally they are fed with genetically modified corn, which is surely not your intention at the moment of purchase.

China has a long tradition of sustainable aquaculture. Professor George Chan has studied the production methods in the rural areas of his homeland and learned how to combine fish ponds and piggery in an intelligent manner.

The production of cement causes more greenhouse gas than any other industry. Nevertheless, most construction materials worldwide depend on cement, with tendency to rise. To reduce costs, companies build ever bigger rotary cement kilns, while the defunct kilns are left there as scrap.

Affordable housing is needed more or less urgently everywhere in the world. A strong demand as well as generous subsidies and incentive programs of the government allows the social housing to stand as one of the most attractive and less risky sectors overall.

You can have electricity in any place with running water available. The professors Daniel Kwok and Larry Kostiuk from the University of Alberta (Canada) made water flow through tiny channels of the size of "the electric double layer", thus creating a voltage.